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Finding the Fourth Proportional to 66,047.51, 91,145.76 and 35,832.98

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Solution

The fourth proportional to 66,047.51, 91,145.76 and 35,832.98 is: 49,449.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,047.51 : 91,145.76 = 35,832.98 : x
  2. Step 2: Convert to fraction form
    66,047.51/91,145.76 = 35,832.98/x
  3. Step 3: Cross multiply
    66,047.51x = 91,145.76 × 35,832.98
  4. Step 4: Simplify right side
    66,047.51x = 3,266,024,195.16
  5. Step 5: Solve for x
    x = 3,266,024,195.16/66,047.51
  6. Step 6: Final answer
    x = 49,449.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.